Sand-mold machine.



PATENTED FEB. 4, 1808.

W. o. SWIFT. SAND MOLD MACHINE.` APPLIGATIOIN FILED JAN.24. 1907..

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BUSH No. 878,471. PATENTBD FEB. 4, 1808.

W. C. SWIFT..

SAND MOLD MACHINE.

APPLICATION FILED JAN. 24. 1907.

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UNITED sTnTEs PATENT oEEIoE.

WILLIS C. SWIFT, OF HINSDALE, ILLINOIS, ASSIGNOR TO FRED HERBERT, OF BIRTLEY,

` ENGLAND.

SAND-MOLD MACHINE.

Specification 4`of Letters, Patent. i

Patented Feb.. 4, 190e.

` Application filed January 24. 1907. Serial lllO- 353.878.

yzen of the United States, and resident of Hinsdale, in the county of Dupage, State of Illinois, have made a certain new and useful invention in Sand-Mold Machines, of which the following is a specification.

This invention relates to machines for making sand molds.

The object of the invention is to provide a machine for making sand molds which is simple in construction and efficient in operation, and wherein the vcapacity ofthe machine in daily output is greatly increased.

A further object is to provide means whereby the delay in the mold forming operation incident to supplying the sand or other material is avoided.

A further object is to rovide an apparatus in which, while a mo d is being formed in one flask another flask is receiving the sand or other mold material', so that as rapidly as the 'mold forming devices complete their work of forming a mold, the flask containing .the finished mold may be removed and re placed in working position with reference to` the mold forming devices with another, previously-charged with the sand, ready for the immediate operation of such mold formingv devices, thereby rendering the operation of theunachine practically continuous.

Other objects of the invention will appear ino'ievfully hereinafter.

The invention consists substantially in the construction, combination, location and relativearrangement of parts, all as will be more .fully hereinafter set forth, as shown in the accompanying` drawings and finally pointed out 'in the appended claims.

'Referring to the accompanying drawings, andto the various views and reference signs appearing thereon, Figure 1 is a view in top p an of a machine embodying the principles of my invention. Fig. 2 is a broken view in vertikaalv .central section on the line 2, 2, Fig.

l. Fig. 3 is a broken view in central longi-V tudinal section on the line 3, 3, Fig. l, showing a flask containing a finished mold ready to be removed from the machine. Fig. 4 is a broken view, partly in side elevation and partly invertical central section-of the upper part of a form ofapparatus embodying the principles ofA my invention, showing a conf struction of an'dmeans for supporting the comb ined 'measuring or displacing .tool 'and ramshowing the manner of applying and locking the spigotpattern to the upper end of the main pattern. Fig. 6 vis a broken detail view, partly in side view, and partly in vertical section, showing the means for locking a flask in centered relation with respect to the mold forming devices.

i employed a flask-to receive the sand or other composition, a power operated main pattern, a socket pattern and a spigot pattern, the main pattern operating through the socket pattern and the llask to perform the work of ramming. the sand and supporting the mold duringthe operations involved in its forming and shaping, it is the` custom to first place and secure the flask in proper alinement and centered relation with respect to the main and auxiliary patterns, rthen to advance the main pattern far enough into the flask-for its ramming end to protrude through thesocket pattern, then to arrest the movement" of the main' pattern, and, while such movement is arrested, to insert a measuring or displacing tool or tube into the flask so as to be received and centered upon the end of the main pattern, then to su ply the sand or outer composition to the desde and into the space bounded by the inner wall of the ilask, the exterior surface of the measuring tool or tube, the end of the main pattern, the socket pattern and the casing for the latter. Theref after the main pattern is advanced through the flask, pushing the measuring or displacing tool or tube out of the flask until finally the advancing end of the main pattern emerges and protrudes from the flask, and the measuring tool, having completed its work, is removed from the end of the main pattern and is replaced by a spigot pattern which is detachably secured to the projecting end of the main pattern. During the final m0ve .ment of themain pattern'the socket pattern is engaged and advanced with the main pattern movement to perform its work. After main pattern, the movement of such pattern is reversed and the spigot patterntis carried thereby into position to perform its work, and, when such work is completed. the

mer. Fig. 5 is a broken detail view in section` the spigot pattern is secured to the end of the- The same part is designated by the same l and will now 'ready for the next operation.

ln the operation of such machine, as above briefly outlined, 'it is, necessary to remove each iiask in'which a mold has been coinpleted, and replace the same with one which is empty, and to properly center and secure each flask in the required relation and alinement, and it is necessaryto till the em Jty rlask wit the sand or other com osition, after sucn flask has been placed andp secured in proper position. and alinement and while the mold forming operation is arrested. lt

is among the special purposes or' my inven-` tion tojprovide means whereby Athe daily 'capacity oi the machine in finished molds produced thereon may be very largely increased by making the molding operations substantially continuous.

In carrying out my invention I propose to provide means which are simple and efficient whereby the asks are preliminarily filled with the sand or other composition before being placed, centered or secured in proper position and alinement with reference to .the mold forming and shaping patterns, whereby the operation ot filling one flask with sand or composition is being carried on While another, previously lled Flask is in molding position and the moldingcperations being carried on therein, l also propose to provide means for rcmovinc the flask, in which the molding operation has been comleted and replacing'the same with the preliminarily sand-filled flasks, thereby interrupting the molding operation only a small fraction of the time heretofore required, and enabling such operation, when once started, to be carried on, the completion of one mold to be followed by the completion of another mold,l without any material interruption.

My invention contemplates the accomplishment of' various other special purposes and objects which will appear more fully hereinafter.

The operation of' removing and replacing the flasks may be accomplished in many specifically different ways, and the idea involved in my invention may he carried out in connection with many specifically difierent constructions and types of moldforming mechanisms, while, therefore, l have shown describe one type and construction of mold forming mechanism, 4and one form of replacing and removing mechanism, l do not desire tewbe limited or restricted in these respects.

fli'eferring to the accompanying drawing,

.reference sign A, designates a main casing.

itstop edge, is secured a bracket F, carrying a stud G, arranged to i'orm a pivotal axis around which. a table liturns. carries a series of supplementary spaced at equal radial distances airis about which table H, revolves, and in each 'of which is mounted a socket'pa'ttern J. A flask K, is adapted to be removably received and supported upon the of each supplementary casing I, and held in any suitable or convenient manner in centered relation with reference thereto. ln the particular form shown, to which, however, my invention is not tobe limited or restricted, the flasks. are removably secured in centered relation A, passing through flanges of the casing and flask, and held by wedges B inserted through the slots'in ,said bolts.` fln this manner the fiasks may be verylquickly adjusted incentered position and held and secured therein, or detached for removal.

Suitably secured to and arranged in axial alinement with the pivot hub (l, of the platform or table ll, is a standard ll, carrying at [its upper end the horizontally extend arms M, which are respectively extend over the. casings l.

casings l,

arranged to l Upon each of I these arms issupported a measuring tool N, l in such relative arrangement with `the cas? I ings`l, and the flask K, secured and centered thereon, that when the measuring tool is ,lowered from its raised position it will be received within the liask, and will rest and be centered at its lower end within lthe upper end'of the socket pattern, the latter being in the form of a rinff, asnshown, and the lower end surface of the measuring tool being tapered to facilitate the centering-'of such end l in the socket pattern. The measuring tools may be normally maintained in their raised l positions in any suitable or convenient manner. l have shown a simple arrangement for accomplishing this result wherein each measuring tool is held in its raised Josition by a counterbalance Weight O, suita ly connected thereto, as, for instance, bymeans of l the hand chain, D, suitably arranged, whereby a pull exerted by an attendant upon the hand chain will raise the counterbalance, thereby permitting the measuring tool to be lowered. i

One of the objects and purposes of the measuring tool is to form between the exterior surface thereof and the interipr surfrom the' upper edge` ing This table i by means of slotted bolts l face of the flask, a pocket or chamber to Yreceive the loose sand or other composition to form the mold, thereby regulating or controlling the thickness and the amount of sand required or desired to form the mold. An-

. position for the `operation of the main patvwhen the measuring tool terngas will ap ear morejfully hereinafter.

thev accomp ishment of this function 'L provide the `lovwer end of the measuring tool with an enlarged taperinfr portion R, which, is forced through the flask by the main pattern, rains 'and com presses the sand. 4

1n order to enable the measuring tool to properlyperform its various functions it is desirable that said tool be accurately centered within the flask. lt will be seen that the lower end of the'nieasuring tool is received `within the upper end of the socket pattern, thereby insuring a proper' centered relation of the measuring tool at that end. Jkt its upper end the measuring tool is provided with radially projecting armsl), beveled upon the under surfaces of the outer ends thereof, as indicated at to conform to the ,taper of the flare of the flask at its upper end. From this it will be seen that when the measuring tool is lowered into the flask the arms P, will eventually be received in and rest upon the inner surface of the flared upper end of the'flask, thereby not only supporting the measuring tool`but also centering the same at its upper eird. lf desired, and in order to facilitate the accurate and rapid centering ofthe measuring tool within the flask, the weight Q, arranged witli in the tool for limited vertical movement may be provided with pivoted arms il" adapted to be'projected through slots or openings in the shell of the measuring tool. rthe weight Q, is suspended from one end of connection D/ and sov long as the weight O, is effective, the weight Q, is held iii raised position, thereby withdrawing the centering arms ll" within the shell of the measuring tool, as shown iii Fig. Ll, but when the influence of weight (l, is removed, as for instance, by an attendant pulling down on the connections l), until the measuring tool is lowered and its weight is taken ofl` the connectioii D, then the weight Q, is free to descend thereby causing the centering arms to he projected radially through the shell of the measuring tool 'and to engage the inner wall of the flask and 'hence insuring the proper and rapid centering of the measuring tool as shown in Fig. 2. When the tool is once centered, the counterbalancc weight O, may again be permitted to become eflective to raise weight Q, thereby withdrawing the centering arms F', into the measuring tool, Vand hence avoiding interference thereof' with the upward movement of the tool in the mold forming operation.

`When the measuring tool has been ,iroparly/'inserted and centered in the flask,- as above described the sand or .other mold forming composition is introduced, as shown on the right hand sidel of Fig. 2, and the `sand-filled flask with its associated vcasing l,

socket pattern' J, and measuring tool, is then ready to be conveyed or transported into proper centered relation with respect tothe main` pattern and the mold forming and vshaping devices, and in order that there sha l 'be n o interruption of the mold forming* operations, the centering of a flask upon its.

supplementary casing l, and socket pattern J, and the centering of the measuring tool within the flask,` and the delivering of the sand into the flask, may all take place at a point removed from the mold forming devices aiid while such devices are performing their work upon a previously filled flask. i

As above indicated, the transfer o'f'tlie sand-'filled flask into position for the mold foiming devices to perform their work, may be effected in many specifically different 'ways within the broad scope and contemplationof'my invention, and, similarly, the

'flask containing the finished and formed mold may be removed from the position ocln t-lie paris not tobe limited or restricted, the )lat-4 for'in or tabl'e ll, upon which the auxiliary or supplementary casiiigs l, are mounted, is made to revolve upon the stud G, as above described, so as to bring said auxiliary or supplemental casings l, successively \into proper alinenienl and operative relation with respect to the main casing A, and the main pattern E, andhy providing the table or platform ll, with a plurality of such auxiliaryor supplemental casings l, each adapted toreceive a flask as above explained, it will be readily seen that when Said table or platform is revolved, a flask in which a mold has ust been completed will be carried out of the line of the mold forming'dev-ices and into osition for the flask containing the coinpleted moldc to be removed, while at the same time a freshly filled flask is brought into position for the next operation of t-he niold forming devices. At the same time an empty flask may he applied to an auxiliary .casing l, and a measuring tool lowered into it and the whole .brought into position to receive the sand or composition for the next operation. rl`he table or platform lil, may be revolved in any suitable or convenient 1'00 eupied thereby during the forming opera-f tions, in many difleieiit ways'. tioular form shown, to which my invention arse? marinier. in jtheparticular forni shown, to

I Which however iny invention is not limited,

, hence advancing ling' l, and socket position. during the said table is revolved l' y rneans or" 5,. meshing With the gear teeth shown.

in order to insure a proper centering of the various auxiliary or supplementary casings with their socket patterns,`sand filled flashs, and measuring tools, as they are successively brought into proper position with referente to tie mold forming devices, l provide the spring sto is U, adapted and arranged to engage in a iixed flange G, see Fig. o, when the casings l, are brought into the required position for the operation of the mold forming devices. llhen a sand filled flask is thus brought into and centered and secured in position, the mold forming .levices ard started up by supplying o )erating medium to the stationary guide cylinder C, thereby causing the plunger sleeve D to be raised and the main pattern E into and through the las As the niain pattern E, advances into and through the auxiliary casattern J, the upper end thereof is eventua ly brought into'bcaring relation With the lov/er end of the measuring -To facilitate the seating and centeringrr of the measuring tool `[Bon the upper erid oi the main pattern, said upper end is somewhat reduced in diameter, as at Jf, tliereby forming a shoulder K, the upper surface of which is beveled or inclined to receive the beveled or inclined lower end surface of the measuring tool. In this .manner the measa pinion T, as clearly 'uring tool becomes seated and centered upon the upper end of the main pattern, and, thereafter, the advancing movement of the main pattern through the flask also forces the measuring tool through and out of the. upper end ol' the flask, such movement ransing the tapered end or portion il, of the measuring tool to etl'ect a rainming or compression of the. sand in theliask, while the ex-` terior surface of the main pattern, operating as a follower for the ramming portion of the measuring tool, serves to iron or smooth the surface of the bore 'of the mold and to sup-- ort and maintain the mold within the gash. As the main pattern approaches the upper limit ofyits movement, a flange or projection L', thereon engages underneath the socket pattern J, and raises the saine from the position shown at the right in Fig, 2, to its working position shown at the left ot said figure thereby compressing, shaping and forming the socket end of the mold. vThe socket pattern is engaged, when in its fully advanced position by the spring pressed dctent "Y, whereby it is maintained in raised return or \\'itliilravval movement of the main pattern, thereby pro tccting the socket end ol thil mold against danger of injury during such withdrawing movement.

l l l l l l.

Wl'ien the upper end ci the niain pattern 'inaily emerges irorn and rises above the `pper end of the iiask, the measuring tool is ernoved or raised out of the Way by its ounterbalance Q, or otherwise. The spigot iorniing pattern, Aindicated at l' is then apn plied and detachably secured to the upper vend ot the main pattern, in any suitable or convenient manner. ln the particular torni shown, to Jh'ich, however, iny invention is not to be limited or restricted, the spigot .pattern Iis suspended from an erin or bracket M, sleeved the saine may be readily swung into or out of proper po ition With reference to the line of movement of the main pattern or the measuring tool. The spigot pattern may be counterbalanced by a Weight j, and any suitable automatic or other forni of attaching and detaching devices rnay be employed for securing the spigot pattern to the inain 'tern and detaching the same therefrom.

'I have shown a sin ple arrangement for accomplishing the desired object wherein a locking slide* 12', is carried by the s igot pattern V, and operated by a bell cran lever i3, to be projected into or Withdrawn from engaging-relationwith respect to a peripheral groove 14, formedon the end of the main pattern. The bell crank lever 13, is opvrerated to Withdraw the slide from locking engagement with the main pattern Whenever the Weight of the spigot pattern is taken by its suspending connections l5, and also whenever the spigot pattern has been carrind down by the withdrawing movement of the main pattern, until a sleeve 16, carried by the spigot pattern engages the flange 17, on the upper end ot the flask, whereby such sleeve is projected endwise,.suid sleeve being connected to one arm ot the bell crank lever. A spring ,18, acting on this sleeve normally exerts its tension in a direction to rock the bell crank lever 13, to project the slide 12, int-o locking engagement with the main pattern. A locking pawl 19, which is engaged and released automatically by the movement of the' sleeve serves to lock the slide in loclging iosition;

vlrhen the spigot end ol'the main' pattern is caused' to begin its movement, thereeb" .carrying the spigot pattern down toform and shape the spigot end of the mold, upon the completion or which worlrV the spigot pattern is released and returned to its raised position and swung out of the way, while the main pattern continues its withdrawal movement, As it approaches its retracted or initial position,

llange Z, on the plunger D, engages and conneczedtby achain or pattern is secured to the withdrawal a rocks a lover N' other suitable connection a, with a'pivoted lever b, which is provided with two hooks, .or fingers c, cl, ,the former of Whichwhen upon the standard L, wherebyl pat-A pattern, the said mainsaid lever t is rocked, engages a toe on the end of a spring pressed rod e, thereby rocking a cam lever Y,A arranged to engage and e withdraw the detent W, from supporting relation with respect to the socket pattern J. The continued downward rocking movement of lever b, causes the finger or hook (l, -thereon to engage and exert a downward pull on the toe of a rod 7L, which is connected to the socket pattern thereby insuring a positive withdrawal of the socket pattern from its raised to its retracted or initial position. The main pattern is by this time fully withdrawn to a point below the table or platform Il, and the flask containing the completed mold is ready to be removed an(l replaced by another sandfilled iiask preparatory to another operation. The casing A, is suitably slotted as. indicated at R to permit the depending rods e, and h, to pass through the saine when the table or platform H isrotated. y

It is believed that the operation of the machine will be fully understood from the foregoing description, taken in connection with the accompanying drawings.

I desire it to be understood that while I have shown and described one form of construction and arrangement embodying the rinciples of my invention I am not to be imited or restricted thereto as many variations therefrom and changes in the details thereof might readily occur Ato persons skilled in the art and still fall within the spirit and sco e of my, invention. But,

What I do c aim as new and useful and of my own invention and desire to secure by Letters Patent is:

1. ln a molding machine, the combination with a main pattern, and actuating mechanism therefor, ,of a flask, means for supporting a. lcolumn of mold forming material within' said -flask, and means for transferring the flask containing the column of mold forming material, into and out of the line of movement ofthe main pattern.

2. In a `molding machine, the combination with avmain casing, a main pattern mounted therein to operate, and means for operatingy said pattern, of a flask, an auxiliary casing for supporting said flask, means for supporting acolumn of sand within said flask, and means for transferring said auxiliary casing and flask containing V'the column of. sand into and out of the line of movement of the main pattern.

. 3. In a molding machine, the combina.

tion with a main casing, a main pattern, and

power mechanism for operating the same, of'. a series of auxiliary supports, flasksr adapted to be.. secured to said supports, and to receivecolumns of mold material therein, and means for successively moving said auxiliary supports with said flasks into and out of the line of movement of the main pattern. 4. In a molding machine, the combina- -tion with a main pattem andI shaping devices, and means for operating the saine, of a flask, means for supporting` the same, means arranged .within said flask for support-ing a column of mold material therein,

means for moving the filled flask into the line of movement of the main pattern, and means for removing the flaskjwith the completed mold from such relation.

5. ln a molding machine, the combination with a main casing, a main pattern arranged to operate therein, and means for operating said pattern, of a series of auxiliary casings, flasks, means'for centering and securing a flask upon Aeach of said auxiliary casinvs, means foi' supporting a column of sand wit in each flask and auxiliary casing, and means for successively moving said auxiliary casings and asks into and out of the line of the main pattern.

6. In a molding machine, a main casing, a main pattern operating therein, a carrier operating pastsaid main casing, a series of auxiliary casings mounted on said carrier each adapted to receive a flask in centere relation with respect thereto, means for supporting a column of sand within said flasks andl the sup orting casings, and means for operating sait carrier.l

7. In a molding machine, a main pattern and means for operating the same, a carrier operating past said pattern, casings mounted on said carrier, each adapted to receive a iiask in centered relation with respect there to, means for supporting a column of sand within said flasks and casiiigs, and means for I movin said carrier tobring said casings successive y into alinement with said pattern. 8. In a molding machine, and in combinaies tion with a main casing and mold formingv devices, an auxiliary casing, a flask, means for supporting and centerin said flask upon said auxiliary casing, a socket pattern arranged within said auxiliary casing, a Ineas-` 4centered relation with respectto the mold formingl devices.

9. In a moldi machine, the combination with a main casing, mold forming devices,l

and means for operating said devices, of ari mounted therein, a'flask-,means foiz'centering said fiask upon said casing, a measuring tool, means forcentering said tool within said fiask, vsaid Hask, casing, pattern and tool adapted to supportc a column of sand, and

auxiliary casing, a socket pattern rnov'ablyd means for transporting said casing and assoelated parts containing the column of vsand into centered relation With respect tothe mold forming devices. l0. ln a molding 1machine, the combination With a main casing, and mold forming devices, of an auxiliary casing, a socket pattern arranged therein, a flask, means for securing the same upon said casing in centered relation with respect to said pattern, a measuring tool, means for supporting .the saine Within 'said flask and'in centered relation with respect to said pattern, and means for moving said casing With its associated narts into and out of centered relation wit-.i respect to said mold forming devices. l

1.1. in a molding machine, the combination with a main pattern and means for operating the'same, of a revolving table, a series'of auxiliary casinge carried thereby, and adapted to be successively aDrought into alinement with the main pattern Wthen said table is revolved, and flasks adapted to be removably secured in centered relation with respect to said casings.

12. .in a molding machine, the combination with a main pattern and means for operating the same', of a revolving table, a series of casingsfcarried thereb a fiask ad apted tolse detuchably secured 1n centered relation 'uson said casings, Whereby'said casings and .asks are successively brou ht into alinement With said main pattern W en said table is revolved, and means for locking said vtahle to hold said casings in centered relation With the main pattern.

13. In a molding machine, the combination with a plunger, a pattern carried thereby, a flask, a measuring tool, means carried by said tool and arranged to engage said fiask whereby said tool 1s supported Within the flask, to form a chamber to receive the mold material, and mcansforconveying the flask into alinement with the pattern.

14. in molding machine, a flask, a support therefor, a measuring toolarranged and supported Within said ilask, and forming Atherewith a chamber to receive the mold composition, a plunger,A a pattern carried thereby and independent of the measuring tool, means for moving the flask carrying the measuring tool andmold vcomposition into and out of the line of movement of said plunger and pattern, and means for advancing said plunger into the flask to engage the measuring tool and force the same out of the 15. In a molding machine, a flask, a support therefor, a measuring tool having a ramming portion, said tool su orted Within said flask and forming therewith a chamber to receive the mold composition, a mein pattern, means for moving thegiiask carrying -the measuring tool and mold composition into and ont of the line of movement of the main evsfivi y l pattern, and means for' advancing said main pattern into the flask to engage said tool and force the same out ci. said flask whereby the mold composition is rammed and shaped.

16. in a molding machine, a flask, a support therefor, a socket pattern, means for supporting' the same Within the flask, a measuring tool, means for supporting said tool Within said flask, said flask, pattern and tool together forming a chamber 'to receive the mold composition, a main pattern, means for moving said flask with the socket pattern 'and measuring tool supported'tlierein into and out oi the line of movement of the main pattern, means for advancing said main pattern into the Flask to engage the tool and force the same out of the flask, and means whereby the ,advancing movement of the main pattern is imparted to the socket pattern.

17. In a molding machine, 'a main pattern and means for moving the saine longitudinally, in combination with a flask, a casing supporting Athe same, a socket pattern arranged Within the casing, a measuring tool arranged and supported within the flask, and means for convo ring the casing into the line of movement o the main pattern moving means. o

18. in a molding machine, a main pattern and means iormoving the saine longitudinally, in combination with a ask, a casing supporting the same, a socket pattern arranged within/Whe casing, a measuring tool arran -ed and supported Within the flask, and 100 provi ed with 'a ramming portion, andv means for moving the casing into and out of the line of movement of the main pattern moving means.

19. in a vmolding machine, a pattern and means for moving the same longitudinally, in combination with a flask, a measuring tool independent of the pattern and having arms arranged to be received and to rest on the end of said flask whereby said tool is support- 11o ed and centered Within said flask, said tool and flaskforrning a chamber to receive the mold composition,.the pattern While being advanced intothe iiask, adapted to engage the measuring tool and force the same out of y the flask and means for moving said fiask and tool and composition carried thereby 'into and vout of the line ot movement of the pattern. y

20.' lna molding machine, a flask, a casing 12u supporting the same, and a measuring tool arranged and supported within said flask, said flask, casing and tool together iol-ming a. chamber orspace into which the mold composition is delivered, and means for moving 123 the flask casing and tool together.

21. In a molding machine. a main pattern and means for moving the'same longitudinally, in combination with a ilask, a support therefor, a socket pattern means for support- 13G ing the same within said flask, a measuringl 22. In amolding machine, a flask, a socket patternarranged adjacent the lower end of the flask, a measuring tool arranged and supported within said flask, means for centering said tool with reference to said pattern, a main pattern, means for operating the same, and means for conveying the flask, socket pattern and measuring tool together into the line of operation of the mainvpattern. A

'23. In a molding machine, a flask, a measuring tool arranged therein and forming therewith a chamber to receive' the mold'A composition, 'in combination with `a plunger, and means for moving the flask and tool into register with -the lineoiv movement of the plunger, whereby the plunger may move through the flask and force the tool out of the same. i*

24. In a molding machine, -a main casing,

a longitudinally moving pattern arranged'` therein, and means for moving the same, in combination with a revolving table, a series of auxiliary casings carried thereby, flasks, means for detachably securing said flasks to said auxiliary casings, a movable socket pattern arranged in each auxiliary casing, measuring tools, means for centering said tools within said fiasks, thereby forming with said flasks; auxiliary casings and socket patterns, chambers or spaces to receive the sand or other mold com' osition, said auxiliary casings adapted to e successively brought into alinement with said longitudinally moving pattern, when said table is revolved.

25. Ina molding machine, a main casing, a pattern arranged therein, and means for moving the same longitudinally in combination with arevolving table, a standard 'can ried thereby, and provided with an arm, an a xiliary casing carried by said table, a flask adapted to be detachably secured to said auxiliary casing, and a counterbalanced measuring tool suspended from said -arm,

and over saidflask.

26.'.In a molding machine, the combina tion ,with mold forming devices, and means for operating the same, of a flask, a socket pattern associated therewith, a measuring tool arranged and supported within said flask l and in centered relation with respect to said pattern, said iiask, pattern and tool forming a chamber to receive a column of' sand, and

means` for moving said flask and associated e5 parts containing the column, of sand into centered relation with respect to said mold forming devices.

s 27. In a molding machine, the combination with a main pattern and means for operating the same of a revolving table, a. series of flasks supported upon said table` and adapted to be successively brought into alinement with the main pattern when said table is revolved and a socket pattern supported in each flask. 1

28. In a mold formingfmachine the combination with mold forming devices, of a series of flasks, and means for successively.

bringing said flasks into alinement with said mold forming devices, a standard a swinging support thereon, and a spigot pattern carV ried by said swinging-support and adapted to be brought into and out of a'linement with the mold forming de'vices and over the flasks.

29. lin a mold forming "machine the combination with mold forming devices of a swinging support, and a spigot pattern carried by said support, whereby said pattern maybe swung into and out of alinementwith said mold forming devices said pattern being movably suspended from said support.

30. In a. mold forming-machine, the combination with 'a flask, a nain pattern, and means for advancing said pattern through the flask, of a spigot pattern, and a swinging support therefor, whereby said spigot pattern may be swung into and out of alinement with said main pattern said spigot pattern being movably suspended from said support.

- 31. In -a molding machine, the combination with a ask, a main pattern and means for moving said main pattern longitudinally through the flask, of a. spigot pattern, -a swinging arm, said spigot pattern being movl ably suspended from said arm, and means for counterbalancing said spigot pattern upon said swinging arm.

32. ln a molding machine, the combination with a main pattern, a revolving table, flasks carried thereby and adapted to be successively brought into alinement with said main pattern when the table is revolved, of a swmgmg arm, a spigot pattern carried thereby, and means for automatically attaching and detaching said spigot pattern with reference to the main pattern.

' i 33. In a molding machine, the combination with mold forming devices, of a carrier, fiasks removably mounted thereon, a socket pattern associated with each flask, whereby when the carrier is actuated a flask and a socket pattern is presented in alinement wit h the mold forming devices, means actuated by the mold forming devices-for advancing thc socket pattern to its work, a rod connected tothe socket pattern and provided with a hooked end, a lever arranged adjacent the moldforming devices into coperative rela- `tion with which the hooked end of said rod is brought when the socket pattern is brought into elinenent with the meld forming de- Vices, and' 'mee-.ns actuated the witlidrznml movement of the lnelcl forming devices for :rocking seid lever.

ln e, molding machine, a mein pattern, a cerfief, a Socket pattern and 'Flask mounted on sadearrer, whereby when said earner is operated seid socket patten and flask are bgought into elnement Wtheeid main. pette'l'n inea-ns for n10-Vino' Said 'mein pattern into and withdrawing the seme from :s2-icl lesl, a hook rod connected to the socket pattern, Ineens to? advancing seid socket pattern to its Work, a lever mounted edjaeent the line of movement o1 the main pattern :1nd into cooperative felation with which the hoek 's brought when the socket pattern is mo d into nlinenent with the main pettern, and menne operated by tne Withdrawal movement et the main pattern fol' rocking' said levez?.

ln e molding machine a mein easing, a mein *pattern mounted therein, ineens for 01 said pet-tern, a evelvnoteble, en auxey seeing mounted on sind table, e eek Carried by' seid euxlerjeasing e socket; atterri arranged Within seid euxiliay ng; and hevvlng e hook rod, e level mount e. n sand 1n em easing to loel er swmg nl the patin of movement of seid heel: rod, and means operated by the movement of said mein pattern for foeling said levee.

36. In a. molding machine, a mein casing, e mein pattern mounted theein, lmeans for moving seid pattern, a revolving table, en auxiliary easing mounted thereon, e lesl enel e seeketpett'ern ean'ied by sefl euxilmjf easing, means operated by t 1e main 'pattem movngnleens for advancing the socket eettern te its Wok, means for automatically looking seid socket pattern in its advanced pesitzomend means for automatically releaei ing seid looking mechanism.

. in testnnonywvhereof have signed my neme te this speeneatxon, nl the pzeseneeof two suesenbmg Wltneeses, on tlns 16th dey et Jennery A. l., 1%?. Y LL? C. SVFT. 

